Smoking-pipe.



L. DEMU TH.

SMOKING PIPE.

APPLICATION FILED AUG-l5. 1913.

1 ,153,771.. Patented Sept. 14, 1915.

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ATTORNEYS @FFTQE.

LEOPOLD DEMUTH, OF NEW YORK, N. Y.

SMOKING-PIPE.

Specification of Letters Eatent.

Patented Sept. 14, 1915.

Application filed. August 15, 1913. Serial No. 784,878.

To all whom it may concern:

Be it known that I, Lno'ronn Dnisrnrn, a citizen of the UnitedStates,-and a resident of the city of New York, borough of Manhattan, inthe county and State of New York, have invented a new and ImprovedSmoking-Pipe, of which the following is a full, clear, and exactdescription.

My invention relates to smoking pipes which consist of a stummel and adetachable stem section. In smoking pipes of the inclicated character,the detachable stem section is usually made of rubber or one of variouscompositions, and the greatdesid'eratu n is to efiect a proper air tightconnection between the stuminel and the detachable section. 'ineconnection is effected in practically all instances by 1 means of atenon which is either separately formed and secured to the stem section,to bev detachable with the latter from the stummel, or formed integrallyon the stem section. The tenon, whether integral or separately formed,eitherhas a threaded connection with the stummel, or is tapered to fitfriction tight in the stummel. A drawback in practice has been thefrequent instances in which the material of the stem section and itstenon shrinks, which is particularly objectionable in the case of atapered tenon designed to fit friction tight, the shrinkage serving toso loosen the connection that the stem section cannot be held securely,and an air tight connection is not possible. On the other hand, athreaded tenon is liable to breakage when strained by being screwedtightly in the effort to efiect the air tight connection be tween theforward end of the stem section and the rear end of the stummel. It hasbeen proposed also to employ a separate threaded tenon in connectionwith an integral boss or collar on the front ofthe stem section, presentbecause of the necessity of employing a threaded tenon of comparativelysmall diameter.

My present invention overcomes the defects mentioned and comprises astem section having an integral tenon, the base of which fits frictiontight in the stummel, and a thread on the forward end of the tenon,there being a corresponding socket in the stummel formed with a smoothand a threaded section to receive the tenon. The unthreaded, smooth baseprevents breakage which is formed with a coarse screw but the liabilityof breakage is still] by giving the necessary strength at the pointheretofore liable to breakage, and the air t ght connection is effectedbecause of the tight fit of the base of the tenon in its socket, whichis additional to the contact between the forward shoulder of the stemsection and the rear end of the stummel. The short threaded portion atthe front end of the tenon is not liable to breakage, the point ofgreatest strain and the usual point of breakage being the base of thetenon. Moreover, the front threaded portion may be made of substantiallythe same diameter as the unthreaded portion, which also contributes tothe element of strength. In case of shrinkage with my improved stemsection I the, thread still holds the stem in position,

and the pipe may be made to possess in any event, the same degree oftightness in the connection as possessed by the ordinary threadedconnection.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views.

Figure 1 is a partly sectional elevation of a smoking pipe embodying myinvention; Fi 2 is a fragmentary longitudinal section b of the rear endof the fixed stem section on the stummel; and Fig. 3 is a side elevationof the detachable stem. section.

In forming a pipe in accordance with my invention, the stummel section10 and the detachable stem 11 may be of any suitable shape or design,the stem section having any approved form of mouthpiece 12. Ordinarily,also, the stem section of the stummel will have a band or ferrule 13.

On the detachable stem 11, at the forward end, is formed an integraltenon 1 1, the base of which is tapered and the front end of threadthere being a socket in the fixed stem section of the 'stummel,presenting correspondingly threaded and tapered portions, as indicatedat 16., 17 in Fig. 2. The formation of the tenon results in a forwardshoulder 18 at the forward end of the stem 11, at the base of the tenon.The unthreaded portion extends for a material distance for wardly fromthe junction with the shoulder 18, and it is of a diameter relatively tothe corresponding portion 16 of the socket as to fit air tight therein,while the shoulder 18 is drawn close to therear end of the stummel. Thusinitially, the air tight closure is effected both at the unthreadedpor-r weakening due to the threads extends for" 7 only a short distance,so that the threaded portion readily resists the strain of tightening upthus the liability of the tenon being broken off is overcome, and I makeprovision for a tlght connectlon under all condltlons.

Having thus described my invention, 1' and desire to secure by Letclaimas new, ters Patent:

1. A smoking pipe of the character described comprlsing a bowl providedwith a stem section, and. a separate stem section,

detachable from the first mentioned stemsection, the detachable stemsection having an integral tenon at the front end, said tenon beingthreaded at its front end for a short distance and plain and unthreadedfor a material distance in the rear ofthe threaded portion, there beinga front shoulder on the detachable stem section at the base of theunthreaded portion, the first mentioned stem section having a socketwith an unthreaded rear portion and a threaded portion inward of theunthreaded portion to correspond with the tenon, the unthreaded portionof the tenon fitting its socket tightly and the opposed front shoulderof theseparate stem binding against the opposed end of the stummel whenthe'threaded connec* tion is screwed up.

2. A smoking pipe comprising a bowl provided with a stem section, and adetachable stem section, the latter having an integral tenon, and afront shoulder at thebase of the tenon, the said tenon being threadedat" tion of the tenon being received wholly in the stummel and theshoulder of the detachable stem section fitting'tightly' against therear end of the stem section'of the stummel when the mating threads arescrewed up.

3. A smoking pipe of the character described, comprising a bowl providedwith a fixed'stem section, and a second detachable and for a shortdistance, i being tapered V stem section having an integral tenon at the7 front end, the said tenon being threaded at its front end'and plainand unthreaded at" thebase of the tenon in the rear of the" threadedportion, the first mentioned stem section having a socket with anunthreaded 7 rear portion tightly receiving the plain unthreaded portionof the detachable stem section, and the fixed stem section havingdirectly formed thereon an internal thread corresponding with the threadon the tenon.

' In testimony whereof I have signed my name to this specification inthepresence of two subscribing witnesses; V

' LEOPOLD DEMUTH. Witnesses: V

J. L. MOAU'LIFFE PHILIP D. RoLLHAUs.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, D. 0.

